Google Cloud Professional Cloud Network Engineer — Question 184

Your company is moving to a hybrid cloud environment and needs to connect two on-premises data centers to Google Cloud. Your company has opted for no service level agreement (SLA) on the Dedicated Interconnect ports. You set up a single Dedicated Interconnect to connect each on-premises data center to Google Cloud: one Dedicated Interconnect in us-east1 and another Dedicated Interconnect in us-west1. You also configured a Cloud Router for each Dedicated Interconnect in each respective region. You now need to configure the Interconnect attachments to provide as much high availability diversity as possible based on this design. What should you do?

Answer options

• A. • Build one VLAN attachment from each Dedicated Interconnect corresponding to the Cloud Router in that region. • Enable global routing at the VPC layer.
• B. • Build one VLAN attachment from each Dedicated Interconnect corresponding to the Cloud Router in that region. • Enable regional routing at the VPC layer.
• C. • Build two VLAN attachments from each Dedicated Interconnect: one connecting to the Cloud Router in us-east1, and one connecting to the Cloud Router in us-west1. • Enable regional routing at the VPC layer.
• D. • Build two VLAN attachments from each Dedicated Interconnect: one connecting to the Cloud Router in us-east1, and one connecting to the Cloud Router in us-west1. • Enable global routing at the VPC layer.

Correct answer: D

Explanation

The correct answer is D because enabling global routing allows the network to utilize both Dedicated Interconnects effectively, providing redundancy and high availability across regions. Options A and B only include a single VLAN attachment per Interconnect, which does not maximize diversity. Option C lacks the global routing feature, which is essential for optimal high availability in a hybrid cloud design.